Hot plate emits audible signals / noises / hums

Humming / whistling sounds are normal and may always occur when using induction. Sounds described as “saucepan noise” (can be sourced from the bottom / base of the saucepan) are likely to be expected at the higher power settings.

Saucepan noises:

The sound level / characteristics depend on the saucepan used.

Different saucepans will produce different sounds.

The more magnetic metal there is in the bottom of the saucepan, the quieter the saucepan will be.

Cast iron saucepans often produce weak / quiet sounds.

Other sounds can also occur when using induction:

A ticking sound:

Normal.

The sound occurs when the relay is used to switch on / off the heat.

Sounds caused by moisture under the saucepan / frying pan:

Ensure that the hot plate is dry.

Clean the saucepan / frying pan immediately if it boils over.

Noises from the cooling fan:

Cooling fans cool the electronics during use of the hot plate.

The fan tends to only come on when the temperature reaches a set value.